55667995 has 4 divisors (see below), whose sum is σ = 66801600. Its totient is φ = 44534392.

The previous prime is 55667977. The next prime is 55668029. The reversal of 55667995 is 59976655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55667995 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5566795 + ... + 5566804.

It is an arithmetic number, because the mean of its divisors is an integer number (16700400).

Almost surely, 2^55667995 is an apocalyptic number.

55667995 is a deficient number, since it is larger than the sum of its proper divisors (11133605).

55667995 is a wasteful number, since it uses less digits than its factorization.

55667995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11133604.

The product of its digits is 2551500, while the sum is 52.

The square root of 55667995 is about 7461.0987796705. The cubic root of 55667995 is about 381.8286627800.

The spelling of 55667995 in words is "fifty-five million, six hundred sixty-seven thousand, nine hundred ninety-five".